RFR: 6928542: Chinese characters in RTF are not decoded

[Ichiroh Takiguchi]

On Thu, 20 Apr 2023 05:47:35 GMT, Ichiroh Takiguchi <itakiguchi at openjdk.org> wrote:

> "character set of font" (font charset) table was created by "Rich Text Format Specification 1.9.1"
> https://interoperability.blob.core.windows.net/files/Archive_References/[MSFT-RTF].pdf
> It refers windgi.h
> https://learn.microsoft.com/en-us/windows/win32/api/wingdi/ns-wingdi-textmetrica
> 
> Test files and testcase are in bugid [JDK-6928542](https://bugs.openjdk.org/browse/JDK-6928542)
> 
> Additional change:
> Special character `\line` should `\n`
> 
> **Note:** Following GitHub actions were failed
> linux-x86 / test (jdk/tier1 part 1) was failed, it seems it was already reported
>> [JDK-8305875](https://bugs.openjdk.org/browse/JDK-8305875) Test TraceVirtualThreadLocals should be run with continuations only
> 
> windows-aarch64 / build (debug) was failed, but I have no idea...

I'd like to start a discussion about Swing's RTF implementation to support font charset.
If you are interested in RTF, please put your comment into this PR or [JDK-6928542](https://bugs.openjdk.org/browse/JDK-6928542).
Non-reviewers are also welcome.

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PR Comment: https://git.openjdk.org/jdk/pull/13553#issuecomment-1617575109